Process of and apparatus for manufacturing dried food products.



M. VOUGA.

0R MANUFACTURING DRIBD fooi? PRODUCTS. AIPLIUATI-ON FILED JUNE 11, 1912.

PBOGESS`0F AND APPARATUS F 1,054,650.

Patented Feb`.25,19 13.

INVENTEIR WITNESSES -Unrrnn s'rnins PATENT orme nomically utilized.

overcomes these disadvantages and enables.

.inafter generally referred to as a which is particularly adapted for MAURICE VOUG, 0F NEUCH-TEL, SWITZERLAND.

r'nocnss oF AND APPARATUS Fon MANUFACTURING DRIED Specification of Letters Patent.

To all whom. it may concern.' Be it known thatv I, MAURICE VoGA, a citizen of the Swiss Republic, residing at Cortaillod, Neuchtel, Switzerland, have invented certain new andV useful Improvements in Processes of and A paratus for anufacturing Dried Food roducts, of

which the following is 'a specification.

The present invention 'has for its object process of and apparatus for -manufacturm dried'm'ilk and the like from condensed milk and the like by currents of alr.

The manufacture of dried milk from condensed milk acfording to the knownprocesses and with the known apparatus presents among others, the disadvantages that the condensed milk is not uniformlytreated,

solubility l tothedetriment of the taste and of the product, and that the air is not eco- Thepresent invention the production of a commercial scale.

The improved rocess consists in forcing the condensed milk to be treated through a grating, sieve, or equivalent means (heregratuniform product on a ing so as to form the hke (hereinafter referred to v as sheets and directing currents of air ata suitable Ytemperature from points next or adjacent to the point of formation or egress of each sheet from the grating so that each sheet is dried by being heated on both sides by-air moving inthe same direction as the sheet.

from condensed milk, carrying comprises 1n comb'matlon,

facture of dried milk out said process,

a chamber, a grating, sieve, or equivalentlmeans,

the spaces between the bars 'or the the condensed milk form it'into dependdirecting currents of like of whichserve for to be forced through to ing sheets, means for air at a suitable temperature from. points next or adjacent to the issuing sheets and in sectional plan,

partments, r'espectivellyx k.

the condensed milk into ireely .depending sheets, threads, tubes, or fh FOOD PRODUCTS.

Patllied Feb. 25, 1913. Serial No. 702,967.

saldi apparatus.

Figure 1 is a verticaly section; Fig. 2 is a' as to the upper half on -w, Ilfig. 11, and as to the lower half on y`y,

lgteferring to the drawing, c, the chamber, which is 4preferably rectangular in form, and' is divided by the transverse grating, finto upper and lower comfor receiving mass of condensed mi scend and be dried within. The grating, f, 1s composed of hollow bars arranged so as to leave narrow vertical spaces or slots, e, for the condensed milk to pass through.

ach bar, f, is provided with a slit or aper tures, g, at its lower side opening downward parallel with the spaces, c, and the interior of each bar is in communication with a hot air main, IL, by openings, '7L'. The bars might be solid instead of hollow a`nd the eated air be conducted to .between the sheets of milk by apertured pipes arranged beneath and parallel tothe bars.

Any suitable means may be providedfor represents regulating the temperature of the air accorcling to the degree of condensation of thev milk or otherwise. The spaces, e, may, if desired, be rendered adjustable in width or slze by a gliding'register or equivalent The improved. apparatus for the manu mens to vary the thickness of the sheets of mil a represents receptacles containing condensed milk to be treated and into which compressed air may be passed for forcing the material through conduits controlled b v valves, o,- into the up er compartment of the chamber, c, and rom thence through the spaces, e, to form the condensed milk Into sheets whichA hang in the lower compartment of the' chamber, as aforesaid,

l tains a hol valves,

represents outlets for the moisture laden air to escape by, leading to a main, c,vwh1chl may be connected' to a pump or extractor.

l represents arms on a shaft, m, for breaking ,up into small shreds or pieces, the dried .sheets as storing o, may be a drum, '7), having an insulatin coating of wood or the like,q and provide with arms,

rfor stirring up t e" articles of dried milk. I-iot or cold air or t e like may be passed through the'drum, p,by means of the shaft to eifect, a heating or a cooling of the product. `The receivers, o, may be connected to any. suitable containers.

A plurality lof weeeptacles. and a, and o, l workin to be continuous.

It wi? be understood that in lieu of -formng'the milk into sheets by means ot a grating, it might be formed into threads, or tubes, by any suitable means.

'In carrying out the process by means of receivers,

-the ap aratus described and shown, the condense milk is forced preferably by aseptic air introduced into either receptacle, a, through one of the valves, o, into the upper compartment of 'the chamber, c, and thence through the slots, e,ffrom the lower ends of which the condensed milk issues in sheet form as aforesaid. At thesame time, hot preferably aseptic air is introduced through the main, h into the bars, f, so as to issue from the sllts or apertures, g, next or adjacent to the lower ends of the slots, te, in

jets or streams parallel with and between each two adjacent condensed milk sheets..

The air is thus introduced at the point where the condensed milk emerges from the rating in sheet form and acts evenly upon oth sides of all the sheets inits hottest and driest condition while the sheetscontain their largest amount ofv moisture. As' the air The air is finally passed out by the outlets,. 42'. The air has a direct passage between the sheets'so that it maybe admittedundera gentle pressure so as not to disturb or break up the sheets before they are dried. AS .the

lower ends of the dried' sheets comein con-l tact with the arms. m, which are rotatedat a suitable speed, the ends are knocked or broken off into shreds or small 'pieces or particles and are driven through the outlets 'and the valves, n, into any suitable receiver.

Als aforesaid. the dried product may. pass into either of the receiversgo` to be stirred have been shown to enable thev or cooled.

As the whole. process maybe carried out aseptic conditions, the dried 'product is most suitable for keeping.

.'tended to cover .its use for treating mixturesA p tk milk and cocoa, milk .and codec, andthe l e. I Having now described my invention, I claim as new land desireto secure by Letters Patent fz-A l. The herein described method of producing dried food products, which consists .in termin said products .into elongated bodies, an' directing currents'otsai'r against said bodies in the direction of their length.

2. The herein described method of `producing dried fod products, which consists sheets an simultaneously directing air curlateral surfaces of said sheets.-

ing dried milk from condensed milk consisting in forming the'oondensed milk into freely depending sheets, and directing curpoints adjacent to the point of format-ion of each sheet so that each sheet is dried by being heated on both sides by air moving' in as described;

4. The improved apparatus for manufacturing dried milk from condensed milk comfwi'th intersticesqthrou h which condensed 'means for drecting'currents of air at a suitvthe issuing sheets in the same direction as their direction of'movement substantially as described. f

food products, embodying therein a'casing, an apertured transverse septum through which substances are adapted to pass in the form of sheets, and means adjacent said septum for' directing *air currents againstboth sides of saidsheetsas they issue from said septum. Y,

6. An apparatus fpr manufacturing dried foodproducts, embodying therein a casing, .an apertured septum extending transversely across said casing, and means in said sept-um for directing air currents against substances passing through said septum.

7. An apparatus for manufacturing dried food. products, embodying therein a casing,

an apertured septum extending `transversely rents at suitable temperatures against both4 the same direction as the sheet, substantially' prsing, in combination, a septum provided 105 milk is forced to form spending` sheets, and

up by the arms, r,lwhile being further. heated at protected from the atmosphere and under Although the invention has only been des scribed with reference to treating milk, I wish it to be understood that it isparticularly suitable for and that the claims are in- .in tormin said food products 'into elongated 3. The improved process ci manutacturrents of air at a suitable temperature from able temperature from points adjacent to 5. .An apparatus for manufacturing dried 5 from said septum.

510 stancesthrough the apertures in said septum,y

acrosssaid casing, means for feeding sub! means for directing air currents against said stances to pass through said septum, and substances as they issue' from sald septum, -means in said septum for dlrectm a1r curand means for commlnutlng the aerated sub- "rents agalnst sald substances ast ey vissue stances.

- 8. An apparatus for manufacturing dried slgnatre in theI presence of two witnesses. y food products, embodying therein a casing,

v MAURICE VO'UGA. an aperturedseptum extending transversely Witnesses: across said casing, means for feeding sub.- F. L. CoLoMB,

Em FLAnNssLER.

In testimony whereof, I have afxed my l5 Y 

